3 ms·What do you mean? Geant4 was always open source, I did my bachelor thesis 15 years ago using it.by rkwasny 7y agoWhat do you mean? Geant4 was always open source, I did my bachelor thesis 15 years ago using it.sdwa 7y agoNow, FLUKA on the other hand... no idea what their deal is.wbl 7y agoIt's very useful for studying ultra small highly metallic supernovas is probably part of the issue.